Windows XP build 2600 (with the buildtag 2600.1050.xpsp1.020529-1810) is a build of Windows XP. Only the express installer of this build is available, which won't install the build due to needed files on MS servers that are no longer existing. The full setup executable was leaked on April 13th, 2015 by OSBetaArchive (OSBA) community.
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